Analysis

  • max time kernel
    151s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2023 15:08

General

  • Target

    NEAS.01a844ca420585231feff8e69ce3f080_JC.exe

  • Size

    204KB

  • MD5

    01a844ca420585231feff8e69ce3f080

  • SHA1

    bf7139abda3de30ffb1a783c6de439e1f2ab33ad

  • SHA256

    cc3c19457c8aacb78435a8d50a81446577ee8e1f1de9a4d3573e329e5fafbbb4

  • SHA512

    0f6f881880da9b878b7517925bee0c7ec8ea27131e8d285b9cd0544bc16024f1c268e794ef5f7ecec0207469a35443a5aac0b35444d42ea2c296795754c8d3e0

  • SSDEEP

    3072:gmPW8Bz0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWfpo:7eq4QxL7B9W0c1RCzR/fSmlMm

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.01a844ca420585231feff8e69ce3f080_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.01a844ca420585231feff8e69ce3f080_JC.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2752
    • C:\Users\Admin\nueizo.exe
      "C:\Users\Admin\nueizo.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\nueizo.exe

    Filesize

    204KB

    MD5

    3b45b31d63b82be451491ac2b0e23dce

    SHA1

    ff828a7f5a83514c7511aecfe61000ed141c6f6b

    SHA256

    73a7838c41d9d81131cbac06502d1ce7c107d7e16b20fc9e24d1301348568e69

    SHA512

    04f3e80c1f29477505178e0ef8560608130846950b1671161785786c5e739158db7a4d2930ece34b4a8d15cb3434d41a8126afaf038c657731ebb4b014bfeb38

  • C:\Users\Admin\nueizo.exe

    Filesize

    204KB

    MD5

    3b45b31d63b82be451491ac2b0e23dce

    SHA1

    ff828a7f5a83514c7511aecfe61000ed141c6f6b

    SHA256

    73a7838c41d9d81131cbac06502d1ce7c107d7e16b20fc9e24d1301348568e69

    SHA512

    04f3e80c1f29477505178e0ef8560608130846950b1671161785786c5e739158db7a4d2930ece34b4a8d15cb3434d41a8126afaf038c657731ebb4b014bfeb38

  • C:\Users\Admin\nueizo.exe

    Filesize

    204KB

    MD5

    3b45b31d63b82be451491ac2b0e23dce

    SHA1

    ff828a7f5a83514c7511aecfe61000ed141c6f6b

    SHA256

    73a7838c41d9d81131cbac06502d1ce7c107d7e16b20fc9e24d1301348568e69

    SHA512

    04f3e80c1f29477505178e0ef8560608130846950b1671161785786c5e739158db7a4d2930ece34b4a8d15cb3434d41a8126afaf038c657731ebb4b014bfeb38